At constant volume, temperature is increased. Then

1. Collision on walls will be less

2. Number of collisions per unit time will increase

3. Collisions will be in straight lines

4. Collisions will not change

Concept Questions :-

Types of velocity
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The r.m.s. speed of a certain gas is n at 400K. The temperature at which the r.m.s. speed becomes two times, will be

1.  800 K

2.  1600 K

3.  1200 K

3.  None of these

Concept Questions :-

Types of velocity
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A cubical box with porous walls containing an equal number of ${\mathrm{O}}_{2}$ and ${\mathrm{H}}_{2}$ molecules is placed in a large evacuated chamber. The entire system is maintained at constant temperature T. The ratio of ${\mathrm{v}}_{\mathrm{rms}}$ of ${\mathrm{O}}_{2}$ molecules to that of the ${\mathrm{v}}_{\mathrm{rms}}$ of ${\mathrm{H}}_{2}$ molecules, found in the chamber outside the box after a short interval is

1.  $\frac{1}{2\sqrt{2}}$

2.  $\frac{1}{4}$

3.  $\frac{1}{\sqrt{2}}$

4.  $\sqrt{2}$

Concept Questions :-

Types of velocity
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The degrees of freedom of a triatomic gas is

1.  2

2.  4

3.  6

3.  8

Concept Questions :-

Law of equipartition of energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The value of CV for one mole of neon gas is

1.  $\frac{1}{2}\mathrm{R}$

2.  $\frac{3}{2}\mathrm{R}$

3.  $\frac{5}{2}\mathrm{R}$

4.  $\frac{7}{2}\mathrm{R}$

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

At constant volume, for different diatomic gases the molar specific heat is

1. Same and 3 cal/mole/°C approximately

2. Exactly equal and its value is 4 cal/mole/°C

3. Will be totally different

4. Approximately equal and its value is 5 cal/mole/°C

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

At constant volume the specific heat of a gas is $\frac{3\mathrm{R}}{2}$ , then the value of $\text{'}\mathrm{\gamma }\text{'}$ will be

1.  $\frac{3}{2}$

2.  $\frac{5}{2}$

3.  $\frac{5}{3}$

4.  None of the above

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The relation between two specific heats of a gas is

1.  ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\frac{\mathrm{R}}{\mathrm{J}}$

2.  ${\mathrm{C}}_{\mathrm{V}}-{\mathrm{C}}_{\mathrm{P}}=\frac{\mathrm{R}}{\mathrm{J}}$

3.  ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\mathrm{J}$

4.  ${\mathrm{C}}_{\mathrm{V}}-{\mathrm{C}}_{\mathrm{P}}=\mathrm{J}$

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The specific heat of an ideal gas is

1.  Proportional to $\mathrm{T}$

2.  Proportional to ${\mathrm{T}}^{2}$

3.  Proportional to ${\mathrm{T}}^{3}$

4.  Independent of $\mathrm{T}$

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Molar specific heat at constant volume is ${\mathrm{C}}_{\mathrm{V}}$ for a monoatomic gas is

1.  $\frac{3}{2}\mathrm{R}$

2.  $\frac{5}{2}\mathrm{R}$

3.  $3\mathrm{R}$

4.  $2\mathrm{R}$

Concept Questions :-

Specific heat